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A045203 Numbers whose base-5 representation contains no 0's and exactly one 4. 1

%I #17 May 21 2023 00:20:46

%S 4,9,14,19,21,22,23,34,39,44,46,47,48,59,64,69,71,72,73,84,89,94,96,

%T 97,98,106,107,108,111,112,113,116,117,118,159,164,169,171,172,173,

%U 184,189,194,196,197,198,209,214,219,221,222,223

%N Numbers whose base-5 representation contains no 0's and exactly one 4.

%H Vincenzo Librandi, <a href="/A045203/b045203.txt">Table of n, a(n) for n = 1..1000</a>

%t Select[Range[300],DigitCount[#,5,0]==0&&DigitCount[#,5,4]==1&] (* _Harvey P. Dale_, Jun 24 2014 *)

%Y Cf. A007091.

%K nonn,base

%O 1,1

%A _Clark Kimberling_

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Last modified March 29 08:48 EDT 2024. Contains 371268 sequences. (Running on oeis4.)